North Charleston police released surveillance video Monday of the so-called "shoe polish" robber who has targeted the same pharmacy twice in the last three weeks.
Police said the suspect covered his face with shoe polish when he held up the CVS pharmacy on Ashley Phosphate Road on July 17 and August 7.
In the first incident, police said the bandit entered the store just before 3:30 am.
The video showed the suspect robbing the pharmacist at knifepoint, demanding Oxycontin and other pain pills.
In the second robbery, police said the suspect had a gun and made the same demands.
The surveillance video showed the bandit forcing all the employees to get on the floor.
Police believe the robber returned because he ran out of meds.
"I think he has a habit and he's trying to feed it and desperate to do anything to get them," said Lt. Scott Perry.
Police have August 28 circled on their calendars.
If the shoe polish robber sticks to his pattern, he will strike for a third time on that date.
"I don't know, but we don't want to find out, we want to get him off the streets," said Perry.
Police believe the suspect is a slender white man, in his mid 30's.
Anyone with information should call Crime Stoppers at 554-1111.